Improvement in condensers for steam-pumps



Um'ran STATES PATENT OFFICE.

FREDERICK EBENEZER SAXBY, OI? LIVERPOOL, ENGLAND.

IMPROVEMENT lN CONDENSERS FOR STEAM- 'PUMPS.

Specification forming part of Letters Patent No. 180,069, dated July 18, 1876; application filed March 13, 1875.

To all whom it may concern:

Be it known that I, FREDERICK EBENEZER SAXBY, of Liverpool, in the county of Lancaster, in that part of the United Kingdom of Great Britain and Ireland called England, have invented certain new and useful Improve ments in Condensers for Steam-Pumps; and I do hereby declare the following to be a full, clear, and exact description of thesame, reference being had to the accompanying drawing, making a part of this specification, in which- Figure 1 represents a sectional elevation of the condenser. Fig. 2 represents a plan, shown halt in section, through the line/A B, Fig. 1.

Similar letters of reference, where they occur in the separate fi ures, denote like parts in the drawing.

My invention relates to improvements in that class of condensers generally used for steam pumping-engines, where a vacuum, iscreated by the intermingling and condensing of the exhaust-steam with and by the suction or inlet water of the pump during its passage through such condenser; and my invention consists in constructing such condenser on the principle of an injector, and in the combination and arrangement of parts, as hereinafter more fully described, and pointed out by the claim.

To enable others skilled in the art to make and use my invention, I will proceed to de-. scribe the same with reference to the drawing.

a is the body or main chamber of the condenser; b, the upper chamber of the condenser. c is the water suction or inlet pipe to condenser. d is the exhaust steam-inlet pipe, from the cylinder of the steam-pump. e is the suction'pipe of the pump, connecting the pump to the condenser. fis an internal pipe, leading from the steam-inlet d into the main body of the condenser a. his a spindle for regulating the pipef, the spindle being worked by the wheel 1'. k is a conical india-rubber valve, which passes around the pipe f, leavin ga space, 1), for the inlet-water to pass, as shown by the arrows s. The conical india-rubber valve 75 is attached by bolts or otherwise to the flange forming the under part of the upper chamber b of the condenser.

denser can be regulated by the wheel 41, which adjusts the internal pipe f as required.

The pipe 61 is fitted with a suitable cock, for.

exhausting the steam from the steam-pump into the air or into the condenser, as required,

and as usual in such cases.

The chief feature of the invention is the elastic valve k, which is of flexible india-rubher, and expands and contracts upon the internal pipef with the forward and backward strokes of the water-piston, thus filling the double function of water valve and pipe, the

valve closing tight upon the pipe when the piston moves back, forming a perfect non-return valve, by which the receiving-pipe is kept continually full, and the Water caused to flow upon the first motion of the piston.

- Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is

In a condenser for steam-pumps, the flexible or elastic india-rubber valve or pipe in, leading from the upper chamber 1) of the condenser, and communicating with the water suction or inlet pipe, and in combination with the internal pipe f, leading from the exhaust-steam pipe of the steam-pump, substantially as specilied.

In testimony that I claim the foregoing as my invention I affix my signature in presence of two witnesses.

FREDERICK EBENEZER SAXBY.

Witnesses:

FREDERICK JOHN UHEESBROUGH, J OHN HAMILTON REDMOND,

Both of 15 Water Street,

Liverpool, England.

The flow of water and operation of the con- 

